The Shen family was wronged, and the legitimate daughter Shen Qingwan concealed her name, dressed as a man "Shen Qinghan" and joined the Qintian Prison, and relied on the secrets of astrology passed down from her ancestors to gain insights into the heavens. Yinghuo Shouxin's bad omen appeared. She predicted floods and warned of war. However, because of her sharpness, she was sent to the northern border, with the dual mission of checking the stars and monitoring Xiao Ce, the general of Zhenbei.
In the northern military camp, the cold-faced general Xiao Ce initially suspected that he was an informant in the court, and treated him coldly and on guard. However, Shen Qingwan used accurate astrological predictions to solve dangerous situations repeatedly. From resisting alien attacks to uncovering traitors in the army, she gradually gained the trust of the military camp. The two stood side by side in the flames of war and defended each other in the intrigues. Xiao Ce discovered the secret of his daughter's identity, and from temptation to loving protection, he promised to clear up the injustice for her.
The second prince, Xiao Jingyu, colluded with foreigners, coveted the imperial power, and set up a series of traps to threaten Shen Qingwan with old cases of the Shen family. Faced with the choice between the justice of the country and the safety of the family, Shen Qingwan and Xiao Ce joined forces to gather old troops and integrate forces, use the stars to guide the way, and use wisdom to break the situation, put down the rebellion in the palace, and end the war in the north.
The injustice is brought to light and the stars are set right. Shen Qingwan set up a Qintian Prison branch in the north to protect people's livelihood with astrology; Xiao Ce took off his armor and returned to the fields, staying with her in the small courtyard. From the star observatory to the border fortress, from the whirlpool of intrigue to the stability of the prosperous age, this pair was destined to be married, using stars as evidence, and using their protection to write the legend of family, country and love.
